package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.entity.SetmealDish;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetMealDishService;
import com.itheima.reggie.service.SetMealService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.List;
import java.util.stream.Collectors;

/**
 * @author zzzhc
 * @version 1.0
 * @description: TODO
 * @date 2022/10/15 18:05
 */
@Slf4j
@RequestMapping("/setmeal")
@RestController
public class SetMealController {

    @Resource
    SetMealService setMealService;

    @Resource
    CategoryService categoryService;

    @Resource
    SetMealDishService setMealDishService;

    /**
     * 新增套餐
     *
     * @param setmealDto
     * @return
     */
    @PostMapping("/add")
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> addMeal(@RequestBody SetmealDto setmealDto) {
        log.info("新增套餐 套餐信息：{}", setmealDto.toString());
        setMealService.saveWithDish(setmealDto);
        return R.success("新增套餐成功");
    }

    /**
     * 查询分页信息
     *
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        //分页构造器
        Page<Setmeal> pageInfo = new Page<>(page, pageSize);
        Page<SetmealDto> dtoPage = new Page<>();
        //条件构造器
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null, Setmeal::getName, name);
        //添加排序条件，根据sort进行排序
        queryWrapper.orderByAsc(Setmeal::getUpdateTime);

        //分页查询
        setMealService.page(pageInfo, queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo, dtoPage, "records");
        List<Setmeal> records = pageInfo.getRecords();

        List<SetmealDto> list = records.stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            //对象拷贝
            BeanUtils.copyProperties(item, setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);
        return R.success(dtoPage);
    }

    /**
     * 删除套餐
     *
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids) {
        log.info("ids:{}", ids);

        setMealService.removeWithDish(ids);

        return R.success("套餐数据删除成功");
    }

    /**
     * 修改套餐状态
     *
     * @param status
     * @param ids
     * @return
     */
    @PostMapping("/status/{status}")
    public R<String> modifyStatus(@PathVariable Integer status, @RequestParam(value = "ids") List<Long> ids) {
        List<Setmeal> setmeals = setMealService.listByIds(ids);
        for (Setmeal setmeal : setmeals) {
            setmeal.setStatus(status);
            setMealService.saveOrUpdate(setmeal);
        }
        return R.success("suc");
    }

    /**
     * 根据条件查询套餐数据
     *
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId + '_' + #setmeal.status")
    public R<List<Setmeal>> list(Setmeal setmeal) {
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null, Setmeal::getCategoryId, setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null, Setmeal::getStatus, setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setMealService.list(queryWrapper);

        return R.success(list);
    }

    @GetMapping("/dish/{id}")
    public R<SetmealDto> getSetMeal(@PathVariable Long id) {
        Setmeal setmeal = setMealService.getById(id);
        SetmealDto setmealDto = new SetmealDto();
        BeanUtils.copyProperties(setmeal,setmealDto);
        LambdaQueryWrapper<SetmealDish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SetmealDish::getSetmealId, id);
        List<SetmealDish> list = setMealDishService.list(queryWrapper);
        setmealDto.setCategoryName(setmeal.getName());
        setmealDto.setSetmealDishes(list);
        return R.success(setmealDto);
    }
}
